Season 3
Welcome back, Upper East Siders. Summer is officially drawing to a close. Rufus, Dan and Jenny spent the summer in the Hamptons, adjusting to the van der Woodsen's glamorous lifestyle surprisingly faster than any of them expected. Blair and Chuck are madly in love and adjusting to their new "in a relationship" status. Nate returns from his travels with a mysterious brunette in tow. Serena returns from her European adventure with many secrets to hide as she gets ready to move into her dorm at Brown. Blair is determined to have her Queen status at NYU, along with Dan and Vanessa, but her roommate sets out to ensure that she does not retain her title.
Episodes
1 Reversals of Fortune Sep 14, 2009 
2 The Freshmen Sep 21, 2009 
3 The Lost Boy Sep 28, 2009 
4 Dan De Fleurette Oct 5, 2009 
5 Rufus Getting Married Oct 12, 2009 
6 Enough About Eve Oct 19, 2009 
7 How to Succeed in Bassness Oct 26, 2009 
8 The Grandfather: Part II Nov 2, 2009 
9 They Shoot Humphreys, Don't They? Nov 9, 2009 
10 The Last Days of Disco Stick Nov 16, 2009 
11 The Treasure of Serena Madre Nov 30, 2009 
12 The Debarted Dec 7, 2009 
13 The Hurt Locket Mar 8, 2010 
14 The Lady Vanished Mar 15, 2010 
15 The Sixteen Year Old Virgin Mar 22, 2010 
16 The Empire Strikes Jack Mar 29, 2010 
17 Inglourious Bassterds Apr 5, 2010 
18 The Unblairable Lightness of Being Apr 12, 2010 
19 Dr. Estrangeloved Apr 26, 2010 
20 It's a Dad, Dad, Dad, Dad World May 3, 2010 
21 Ex-Husbands and Wives May 10, 2010 
22 Last Tango, Then Paris May 17, 2010